Refining engine



REFINING ENGINE Filed May 28, 1928 Fig.5

Patented June, 10, 1930 UNITED STATES HERHAN'N HALLICKH, OF DUREN, RHEINLAND, GERMANY V nnrmme ENGINE Application filed-Hay 28, 1928, Serial No. 281,316, and in Germany May 30, 1927.

This invention relates to improvements in refining engines for paper pulp and similar material, the object of the invention being to provide an improved engine of this class which is simple in construction, which is continuous in its operation and by means of which material of maximum strength and density can be efiiciently treated.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

In the accompanying drawings Figure 1 is a vertical transverse sectional view of a refining engine constructed and arranged in accordance with my invention.

Figure 2 is a vertical longitudinal sectional view of the same.

Figure 3 is a plan of the same with the casing in horizontal section on the plane coincident with the cylinder shaft.

Figure 4 is a vertical transverse sectional view of a modified form of the invention in which a truncated conical milling roller is employed.

Figure 5 is a plan of the same with the casin in horizontal section on the plane coincldent with the shaft of, said milling roller. L

According to Figures 1 to 3, the material is introduced into the machine through the inlet a. The material is seized by the grinding cylinder 0 rotating in the direction of the arrow 6, the length of which is considerably greater than the diameter, and milled between the knives of the cylinder and those of the ground work (1. The cylinder 0 is enclosed by the casing e which has one side at the top, an enlarged chamber 7 intended to receive the guidin or feeding device for the material more in ly described hereinafter. The casing e fits closely around the circumference of the cylinder, on one side, and in the direction of the rotation of the cylinder is enlarged to form the chamber f, and has the top horizontal wall 9 and the vertical wall h which approaches at the bottom gradually theinlet o the ground work 11.

Within the enlarged chamber 7 is pro- 50 vided a series oi transversal walls 12 -4;

and near and in front of the cylinder a short longitudinal wall k, so that a plurality of chambers Z Z is formed (Figs. 2 and 3). The material introduced through the inleta enters the first chamber l it is then seized by the cylinder 0 and thrown backover the top of the cylinder. The material, such as pulp, is projected forcibly against the upper part of the wall it and falls then into the guiding device provided within the enlarged chamber 7, which device conducts the pulp in a helical line through the machine. The pulp arrives by gravity first on the deflector plate g oscillating on the bolt p of the first transversal wall A and is laterally deflected. The pulp. then passes in the direction of arrow 7' (Fig. 2) into the chamber Z from which the pulp is taken off or exhausted by the cylinder 0, thrown back over its top and conducted by the inclined deflecting plate 9,; into the chamber Z and so on. It will be 7 understood that the pulp is conducted positively'through the machine on a helical line and can be continuously taken OR in a perfectly milled state at the exit t. The machine is further provided'with an arrangement for regulating the duration of the milling. As Fig. 2 shows clearly, all deflectors 9 -9, oscillating on the bolts p 7 are engaged at their free ends by the abut- 8o ments u of a pushing bar '0. The latter slides within guide boxes to .of the front walls and can be moved to and fro by a wheel y and a screw-threaded spindle m. The deflectors g 7 are thus more or less inclined by the B5 bolts u, so that the pulp remains longer or shorter within the machine according to the obliquity of the deflectors. The deflectors could be furthermore assembled to form groups in order to realize a more precise reg- 00 ulating effect. Each group could be actuated separately by a pull rod.

The above described guiding device could also be replaced by another such for instance as a helical worm 2, shown by dotted lines in-Fig. 1, the angular velocity whereof can 'be regulated. This worm transports the arriving pulp in axial direction successively to the guiding chambers Z,Z

According to Figs. 4 and 5 the apparatus 2 1.7es,aa2

is equipped with a coned milling roller 0. The guiding device comprises a series of chambers l -Z provided within the enlarged spaces f and f of the casing e.

The material entering at a is seized by the cone 0, milled between the upper and lower ground works d and (Z? and pressed positively through the machine in the direction of the arrows (Fig. 5). It escapes through the outlet 2!. The wall of .the enlarged chamber 6 acts like a rebounding element; but it is understood that special devices, not shown, could be provided.

The transport of pulp in both forms of apparatus is so effected that the substance is helically pushed forward under gravity effect with the help of guiding chambers Z,Z of large transverse section, which allow a working of material of very big density or compactness.

I claim:

1 In a pulping machine for paper and similar substances the combination of a grinding element having a helical guiding device disposed within the enlarged casing of the apparatus with adjustable deflecting or transporting elements.

2. In a pulping machine for paper and similar substances the combination of a grinding element having a helical guiding device disposed within the enlarged casing of the apparatus with adjustable deflecting or transporting elements oscillating on bolts.

3. In a pulping machine for paper and similar substances the combination of a grindin element having a helical guiding device isposed within the enlarged casing of the apparatus with adjustable deflecting or transporting elements oscillating on bolts, the free ends of said elements being adjustable by means of abutments placed on a hori- 'zontally movable rod.

4. In a pulping machine for paper and similar substances the combination of a grinding element having a helical guiding device disposed within the enlarged casing of the apparatus with adjustable deflecting or transporting elements oscillating on bolts, the free ends of said elements being adjustable by means of abutments placed on a horizontally movable rod on the threaded outer end whereof is placed a hand wheel.

5. In a ulping machine for paper and similar sub grindin element having a helical guiding device disposed within the enlarged casing of the apparatus with vertical transversal and a short lon "tudinal wall forming together a series 0 chambers.

In testimony whereof I have hereunto set my hand this 14th da of Ma A. D. 1928. HERMZNN MXLLICKH.

stances the combination of a, 

